Home / 72,713.04-100,343.39-40,882.07

Finding the Fourth Proportional to 72,713.04, 100,343.39 and 40,882.07

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Solution

The fourth proportional to 72,713.04, 100,343.39 and 40,882.07 is: 56,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,713.04 : 100,343.39 = 40,882.07 : x
  2. Step 2: Convert to fraction form
    72,713.04/100,343.39 = 40,882.07/x
  3. Step 3: Cross multiply
    72,713.04x = 100,343.39 × 40,882.07
  4. Step 4: Simplify right side
    72,713.04x = 4,102,244,787.89
  5. Step 5: Solve for x
    x = 4,102,244,787.89/72,713.04
  6. Step 6: Final answer
    x = 56,416.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.